/Engine/Plugins/Runtime/nDisplay/Source/DisplayClusterScenePreview/Public/DisplayClusterLightCardEditorHelper.h
Calculates the desired direction from the view origin given a pixel position within the view.
true if the direction was found
bool CalculateOriginAndDirectionFromPixelPosition ( const FIntPoint & InPixelPos, const [FSceneView](API\Runtime\Engine\FSceneView) & InSceneView, const FVector & InOriginOffset, FVector & OutOrigin, FVector & OutDirection )